Salesforce Integration with Outbound REST APIs

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September 14, 2023

Salesforce Integration with Outbound REST APIs

Our client, a leading fintech offering education loans, needed a solution to sync their Salesforce platform with a third-party Loan Origination system. The third-party system exposed a suite of RESTful APIs but required OAUTH2 and JWT tokens for authorizations.

Objective:

To implement a secure, real-time synchronization mechanism between Salesforce and the loan origination system. The mechanism had to be triggered contextually based on certain events or criteria in Salesforce.

Solution:

OAUTH2 Implementation:

Using Salesforce’s Apex, we designed a class dedicated to retrieving the OAUTH2 access token.
This class was responsible for securely storing the client ID, secret, and other essential credentials.
On successful authorization, the access token was cached for future requests.

JWT Authorization:

We leveraged Apex to generate JWT tokens, which were signed using the RSA SHA256 algorithm.
The private key was securely stored in Salesforce, and the JWT token was used to request an access token from the third-party system.

Flow Integration:

Salesforce Flows were created to dictate when and how the API calls should be made.
These flows were event-driven, triggered by actions like completed loan application submission in Salesforce.
On each trigger, the Flow would call the relevant Apex class, which in turn interacted with the outbound API, passing the necessary authorization tokens.

Data Synchronization:

On successful API call, data was either pushed to the third-party system or pulled based on the requirements.
We implemented error-handling mechanisms to manage potential API failures or data inconsistencies.

Results:

Real-time Sync: With the integrated Flow and Apex logic, Salesforce achieved near real-time synchronization with the third-party inventory management system.
Enhanced Data Integrity: By employing OAUTH2 and JWT, we ensured secure data transactions, maintaining data integrity and confidentiality.
Scalable Solution: The solution was crafted to accommodate an increasing number of API calls as the CRM platform scaled.

Conclusion:

Our approach allowed the client to seamlessly integrate their Salesforce instance with a crucial third-party system. It not only automated significant parts of their Loan Application management but also brought in efficiency, accuracy, and scalability.